
<div class="navbar navbar-expand-lg navbar-light">
  <div class="collapse navbar-collapse" id="navbarNavDropdown">
    <div class="navbar-brand login_image"></div>
    <ul class="navbar-nav" >
      <li class="nav-item">
        <a class="nav-link" href="home">Home <span class="sr-only">(current)</span></a>
      </li>
      <li class="nav-item">
        <a class="nav-link" href="introduce">what’s Studyplus</a>
      </li>
      <li class="navbar-nav ml-auto" ngbDropdown>
        <a class="nav-link" href="javascript:void(0)" ngbDropdownToggle id="dropdownManual">My Homework</a>
        <div ngbDropdownMenu aria-labelledby="dropdownManual" class="dropdown-menu">
          <a ngbDropdownItem href="homework/homeworkList">HomeworkList</a>
          <a ngbDropdownItem href="homework/course">Course</a>
        </div>
      </li>
    </ul>
  </div>
  <div>
    <span class="navbar-brand header-title">Personal Homework Reminder</span>
  </div>
</div>

